Home
Class 12
CHEMISTRY
The Delta(f)H^(Theta) for CO(2)(g), CO(g...

The `Delta_(f)H^(Theta)` for `CO_(2)(g), CO(g)`, and `H_(2)O(g)` are `-393.5, -110.5` and `-214.8 kJ mol^(-1)`, respectively. The standard enthalpy change (in `kJ mol^(-1))` for the reaction
`CO_(2)(g) +H_(2)(g) rarr CO(g) +H_(2)O(g)` is

A

`+524.1`

B

`+ 41.2`

C

`-262.5`

D

`-41.2`

Text Solution

Verified by Experts

The correct Answer is:
B
`CO_(2)(g) + H_(2)(g) to CO(g) + H_(2)O(g)`
`Delta H = sum Delta_(f) H^(@)("products") - sum Delta_(f) H^(@)("reactants")`.
Promotional Banner

Topper's Solved these Questions

  • THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE MAIN (ARCHIVE)|20 Videos

  • THEORY OF SOLUTIONS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|31 Videos

  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|44 Videos

Similar Questions

Explore conceptually related problems

The DeltaH_(f)^(@) for CO_(2)(g) , CO(g) and H_(2)O(g) are -395.5,-110.5 and -241.8" kJ" mol^(-1) respectively. The standard enthalpy change in (in kJ) for the reaction CO_(2)(g)+H_(2)(g)toCO(g)+H_(2)O(g) is

Delta H_(1)^(@) for CO_(2)(g) , CO(g) and H_(2)O(g) are -393.5,-110.5 and -241.8 kJ mol^(-1) respectively. Standard enthalpy change for the reaction CO_(2)(g)+H_(2)(g) rarr CO(g) + H_(2)O(g) is

The molar enthalpies of combustion of C_(2)H_(2)(g), C("graphite") and H_(2)(g) are -1300,-394 , and -286 kJ mol^(-1) , respectively. The standard enthalpy of formation of C_(2)H_(2)(g) is

Standard heat of formation of CH_(4)(g), CO_(2)(g) and H_(2)O(l) are -75, -393.5, -286 kJ respectively. Find out the change in enthalpy for the reaction. CH_(4)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)

The standard enthalpies of formation at 298K for C Cl(g), H_(2)O(g), CO_(2)(g) and HCl(g) are -106.7, -241.8, -393.7 , and -92.5kJ mol^(-1) , respectively. Calculate DeltaH^(Theta)underset(298K) for the reaction C Cl_(4)(g) +2H_(2)O(g) rarr CO_(2)(g) +4HCI(g)

The standared enthalpies of formation at 298K for C C1(g), H_(2)O(g), CO_(2)(g) and HC1(g) are -106.7, -241.8, -393.7 , and -92.5kJ mol^(-1) , respectively. Calculate DeltaH^(Theta)underset(298K) for the reaction C C1_(4)(g) +2H_(2)O(g) rarr CO_(2)(g) +4HCI_(g)

The standard enthalpics of formation of CO,NO_(2) and CO_(2) are 110.5 KJ mol^(-1), -33.2 KJ mol^(-1) and -393.5 KJ mol^(1) respectively. The standard enthalpy of the reaction 4CO(g)+2NO_(2)(g)to4CO_(2)(g)+N_(2(g)) is

The standard heat of formation of at 298 K for C Cl_(4)(g), H_(2)O(g), CO_(2)(g) and HCI(g) are -25.5, -57.8, -94.1 and -22.1 kcal mol^(-1) respectively. Calculate Delta_(r)H^(Theta) for the reaction C Cl_(4)(g)+2H_(2)O(g) rarr CO_(2)(g)+4HCl(g) Hint : Delta_(r)H^(Theta) = sum Delta_(f)H_("Products")^(Theta)- sum Delta_(f)H_("Reactants")^(Theta)

Using ._(f)G^(Theta)(Hi) = 1.3 kJ mol^(-1) , calculate the standard free enegry change for the following reaction: H_(2)(g) +I_(2)(g) rarr 2HI(g)

Find the value of Delta_(f) H^(@) for the reaction N_(2) O_(4) (g) + 3 CO(g) rarr N_(2) O (g) + 3 CO_(2) (g) Standard enthalpies of formation of CO(g), CO_(2) (g), N_(2) O (g) , and N_(2) O_(4) (g) are - 110, - 393, 81 , and 9.7 kJ mol^(-1) , respectively. Strategy : The standard enthalpy change of a reaction is equal to the sum of the standard molar enthalpie of formation of the products each multiplied by its stiochiometric coefficient in the balanced equation, minus the corresponding sum of the standard molar enthalpies of formation of the reactants

VMC MODULES ENGLISH-THERMOCHEMISTRY-JEE ADVANCED (ARCHIVE)
  1. A gas mixture of 3.67L of ethylene and methane on complete combustion ...

    Text Solution

    |

  2. Determine the enthalpy of the reaction C(3)H(8)(g)+H(2)(g) rarr C(2)H(...

    Text Solution

    |

  3. In an endothermic reaction, the total enthalpy of reactant is………………tha...

    Text Solution

    |

  4. The polymerisation of ethylene to linear polyethylene is represented b...

    Text Solution

    |

  5. In order to get maximum calorific output a burner should have an optim...

    Text Solution

    |

  6. The standard molar enthalpies of formation of cyclohexane (I) and benz...

    Text Solution

    |

  7. Compute the heat of formation of liquid methyl alcohol in kilojoule pe...

    Text Solution

    |

  8. From the following data, calculate the enthalpy change for the combust...

    Text Solution

    |

  9. Diborane is a potential rocket fuel that undergoes combustion accordin...

    Text Solution

    |

  10. The Delta(f)H^(Theta) for CO(2)(g), CO(g), and H(2)O(g) are -393.5, -1...

    Text Solution

    |

  11. Which of the following reactions will define DeltaH(f)^(@) ?

    Text Solution

    |

  12. The heats of combustion of carbon and carbon monoxide are -393.5 and ...

    Text Solution

    |

  13. For the reaction 2CO +O(2) rarr 2CO(2), DeltaH =- 560 kJ, 2mol of ...

    Text Solution

    |

  14. In a constant volume calorimeter, 3.5 g of a gas with molecular weight...

    Text Solution

    |

  15. The species which by definition has zero standard molar enthalpy of fo...

    Text Solution

    |

  16. Using the data provided , calculate the multiple bond energy (Kamal^(-...

    Text Solution

    |

  17. The standard enthalpies fo formation of CO(2) (g), H(2) O (1), and glu...

    Text Solution

    |

  18. Given C(("graphite"))+O(2)(g)toCO(2)(g), Delta(r)H^(0)=-393.5kJ" "mo...

    Text Solution

    |

  19. The surface of copper gets tarnished by the formation of copper oxide....

    Text Solution

    |

  20. Choose the reaction, for which the standard enthalpy of reaction is eq...

    Text Solution

    |